package cn.itcast.netty.c3;

import io.netty.bootstrap.ServerBootstrap;
import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.DefaultEventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.channel.socket.nio.NioSocketChannel;
import io.netty.handler.logging.LoggingHandler;
import lombok.extern.slf4j.Slf4j;

/**
 *
 */
@Slf4j
public class EventLoopServer {

    public static void main(String[] args) throws InterruptedException {
        DefaultEventLoopGroup workers = new DefaultEventLoopGroup(2);
        new ServerBootstrap()
                .group(new NioEventLoopGroup(), new NioEventLoopGroup(2))
                .channel(NioServerSocketChannel.class)
                .childHandler(new ChannelInitializer<NioSocketChannel>() {
                    @Override
                    protected void initChannel(NioSocketChannel ch) throws Exception {
                        ch.pipeline().addLast(new LoggingHandler());
                        ch.pipeline().addLast(workers,"myHandler",new ChannelInboundHandlerAdapter() {
                            @Override
                            public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
                                ByteBuf buf = msg instanceof ByteBuf ? (ByteBuf) msg : null;
                                if (buf != null) {
                                    byte[] bytes = new byte[16];
                                    ByteBuf byteBuf = buf.readBytes(bytes, 0, buf.readableBytes());
                                    log.debug(new String(bytes));
                                }
                            }
                        });
                    }
                })
                .bind(9090).sync();
    }
}
